978 COMPOSITAE. [ Raoulia. 
91. R. tenuieaulis Hook. /. Fl. Nov. Zel. 1 (1853) 135, t. 364.—Stems 
slender, prostrate and creeping, much and laxly branched, 1-10 in. long; 
branches ascending at the tips. Leaves laxly imbricating, spreading or 
recurved, 34-5 in. long, linear-oblong or lanceolate-spathulate, or on 
luxuriant shoots obovate-spathulate, acuminate or apiculate, concave, 
more or less clothed with greyish appressed tomentum or almost glabrous. 
Heads 4-tin. long; involucral bracts in 3 series; outer tomentose or 
glabrate, acute; inner scarious, with brown acute or obtuse tips. Florets 
from 10 to 16, the females about equalling the hermaphrodite ones in number. 
Achene glabrate or puberulous. Pappus-hairs copious, very slender.— 
Handb. N.Z. Fl. (1864) 148; T. Kirk Students’ Fl. (1899) 302; Cheesem. 
Man. N.Z. Fl. (1906) 329; Beauverd in Bull. Bot. Soc. Genéve, 1 (1910) 223. 
Var. pusilla 7. Kirk Students’ Fl. (1899) 302.—Smaller, glabrous or nearly so, 
much more closely branched; branches 4-3 in. high. Leaves 34,-;4, in., linear, acute, 
concave. Female florets almost twice as numerous as the hermaphrodite ones. 
Nortu anp Sours Isnanps: Not uncommon from the Thames goldfields south- 
wards, usually on shingly or sandy river-beds. Var. pusilla: Rimutaka Range, 
JT. Kirk! mountains flanking the Wairau Valley, 7. £. C. Sea-level to 5000 ft. 
Decem ber—January. 
Easily distinguished by the slender habit, narrow acute or apiculate leaves with 
greyish tomentum, and brown-tipped involucral bracts. 
22. R. cinerea Petrie in Trans. N.Z. Inst. xlv (1913) 269.—Forming 
ashy-grey patches several inches in diameter. Stems branched, somewhat 
woody, prostrate and creeping, sending down numerous long and slender 
roots; branches short, prostrate or ascending. Leaves closely imbricated, 
suberect, more or less incurved at the tips, linear-subulate, acuminate, }-? In. 
long, + in. broad, densely clothed on both surfaces with greyish-white 
floccose tomentum. Heads terminal and solitary, sunk among the upper- 
most leaves, about ?in. diam. Involucral bracts in 2-3 series, not 
exceeding the uppermost leaves, thin and scarious, narrow - lanceolate, 
yellowish-whige, the innermost not white and radiating. Florets about 
15-20; pappus-hairs not numerous, slender, not thickened at the tips. 
Achene glabrous. 
SoutH Isntanp: Marlborough—Shingle-slopes in the Upper Awatere Valley, alt. 
5000 ft., Cockayne and Mowatt / 
Apparently a very distinct species, with no close allies. The above description 
is based upon Mr. Petrie’s, for the only specimens I have seen are little more than mere 
scraps. 
12. LEUCOGENES Beauverd. 
Perennial herbs, almost suffruticose towards the base, clothed through- 
out with silvery-grey or white tomentum. Basal and cauline leaves 
densely imbricate. Floral leaves larger, spreading in a radiating manner. 
Heads heterogamous and discoid, usually arranged in a cymose manner. 
Involucre campanulate; bracts in several series, imbricate, scarious; the 
outer gradually becoming smaller and woolly on the back. Receptacle 
almost flat, naked. Corolla of the female flowers tubular, more or less 
dilated at the top, 4-toothed; of the hermaphrodite regular, narrow-cam- 
panulate, 5-fid at the top. Anthers sagittate at the base, witn long caudate 
tails. Style-branches of the hermaphrodite flowers long, curved, com- 
pressed, glabrous, subcapitate at the apex and shortly papilloss. Achenes 
fusiform, obscurely 5-angled, densely covered with long setose hairs. 
Pappus-hairs 20-25, in 1 series, broad, scabrid, papillose towards the top. 
